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  2. OBD-II PIDs - Wikipedia

    en.wikipedia.org/wiki/OBD-II_PIDs

    The third and fourth bytes are to be interpreted differently depending upon whether the engine is spark ignition (e.g. Otto or Wankel engines) or compression ignition (e.g. Diesel engines). In the second byte (B), bit 3 indicates the engine type and thus how to interpret bytes C and D, with 0 being spark (Otto or Wankel) and 1 (set) being ...

  3. MegaSquirt - Wikipedia

    en.wikipedia.org/wiki/MegaSquirt

    See the Megamanual for download and documentation. MS2/Extra code [9] This is an extension of the base code, adding many of the much needed MS1/Extra features to the MS-II chip. Enhancements include wide support for OEM crank/cam wheels, wasted spark and COP ignition, closed loop idle, EAE, boost control, nitrous control and many other features.

  4. Ignition timing - Wikipedia

    en.wikipedia.org/wiki/Ignition_timing

    Pressure in cylinder pattern in dependence on ignition timing: (a) - misfire, (b) too soon, (c) optimal, (d) too late. In a spark ignition internal combustion engine, ignition timing is the timing, relative to the current piston position and crankshaft angle, of the release of a spark in the combustion chamber near the end of the compression stroke.

  5. Rev limiter - Wikipedia

    en.wikipedia.org/wiki/Rev_limiter

    The RPM level that results with the spark timing being arrested can be a constant level, or, with the proper ignition control modules, variable. Variable rate ignition modules can be adjusted quickly and easily to achieve the appropriate RPM limit for different situations, such as street racing, drag racing, road course racing and highway driving.

  6. Contact breaker - Wikipedia

    en.wikipedia.org/wiki/Contact_breaker

    The contact breaker is operated by an engine-driven cam.On an engine with a distributor, the contact breaker can be found beneath the distributor cap.The position of the contact breaker is set so that it opens (and hence generates a spark) at exactly the optimum moment to ignite the fuel/air mixture.

  7. Unified Diagnostic Services - Wikipedia

    en.wikipedia.org/wiki/Unified_Diagnostic_Services

    Here, the location and size of the data is specified. In turn, the tester specifies how large the data packets can be. 0x35 0x75 Request Upload The service "request upload" is almost identical to the service "Request Download". With this service, the software from the control unit is transferred to the tester. The location and size must be ...

  8. Boy racer who left friend dying in crash detained

    www.aol.com/boy-racer-left-friend-dying...

    A "cowardly" boy racer who fled and left his 15-year-old friend dying in the wreckage of a crashed car has been detained. Billy Conroy was 16 when he crashed a Mazda6 in Newcastle while fleeing ...

  9. Duraspark - Wikipedia

    en.wikipedia.org/wiki/Duraspark

    The Duraspark II is a Ford electronic ignition system. Ford Motor Company began using electronic ignitions in 1973 with the Duraspark electronic ignition system and introduced the Duraspark II system in 1976. The biggest change, apart from the control box redesign, was the large distributor cap to handle the increased spark energy.